<template>
  <el-form>
    <el-form-item>
      <el-radio v-model="radioValue" :label="1">
        日，允许的通配符[, - * ? / L W]
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="2">
        不指定
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="3">
        周期从
        <el-input-number v-model="cycle01" :min="1" :max="30" /> -
        <el-input-number v-model="cycle02" :min="cycle01 + 1" :max="31" /> 日
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="4">
        从
        <el-input-number v-model="average01" :min="1" :max="30" /> 号开始，每
        <el-input-number v-model="average02" :min="1" :max="31 - average01" /> 日执行一次
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="5">
        每月
        <el-input-number v-model="workday" :min="1" :max="31" /> 号最近的那个工作日
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="6">
        本月最后一天
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="7">
        指定
        <el-select v-model="checkboxList" clearable placeholder="可多选" multiple :multiple-limit="10">
          <el-option v-for="item in 31" :key="item" :label="item" :value="item" />
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>
<script setup>
const emit = defineEmits(['update']);
const props = defineProps({
	cron: {
		type: Object,
		default: {
			second: '*',
			min: '*',
			hour: '*',
			day: '*',
			month: '*',
			week: '?',
			year: '',
		}
	},
	check: {
		type: Function,
		default: () => {
		}
	}
});
const radioValue = ref(1);
const cycle01 = ref(1);
const cycle02 = ref(2);
const average01 = ref(1);
const average02 = ref(1);
const workday = ref(1);
const checkboxList = ref([]);
const checkCopy = ref([1]);
const cycleTotal = computed(() => {
	cycle01.value = props.check(cycle01.value, 1, 30);
	cycle02.value = props.check(cycle02.value, cycle01.value + 1, 31);
	return cycle01.value + '-' + cycle02.value;
});
const averageTotal = computed(() => {
	average01.value = props.check(average01.value, 1, 30);
	average02.value = props.check(average02.value, 1, 31 - average01.value);
	return average01.value + '/' + average02.value;
});
const workdayTotal = computed(() => {
	workday.value = props.check(workday.value, 1, 31);
	return workday.value + 'W';
});
const checkboxString = computed(() => {
	return checkboxList.value.join(',');
});
watch(() => props.cron.day, value => changeRadioValue(value));
watch([radioValue, cycleTotal, averageTotal, workdayTotal, checkboxString], () => onRadioChange());
function changeRadioValue(value) {
	if (value === '*') {
		radioValue.value = 1;
	} else if (value === '?') {
		radioValue.value = 2;
	} else if (value.indexOf('-') > -1) {
		const indexArr = value.split('-');
		cycle01.value = Number(indexArr[0]);
		cycle02.value = Number(indexArr[1]);
		radioValue.value = 3;
	} else if (value.indexOf('/') > -1) {
		const indexArr = value.split('/');
		average01.value = Number(indexArr[0]);
		average02.value = Number(indexArr[1]);
		radioValue.value = 4;
	} else if (value.indexOf('W') > -1) {
		const indexArr = value.split('W');
		workday.value = Number(indexArr[0]);
		radioValue.value = 5;
	} else if (value === 'L') {
		radioValue.value = 6;
	} else {
		checkboxList.value = [...new Set(value.split(',').map(item => Number(item)))];
		radioValue.value = 7;
	}
}
// 单选按钮值变化时
function onRadioChange() {
	if (radioValue.value === 2 && props.cron.week === '?') {
		emit('update', 'week', '*', 'day');
	}
	if (radioValue.value !== 2 && props.cron.week !== '?') {
		emit('update', 'week', '?', 'day');
	}
	switch (radioValue.value) {
	case 1:
		emit('update', 'day', '*', 'day');
		break;
	case 2:
		emit('update', 'day', '?', 'day');
		break;
	case 3:
		emit('update', 'day', cycleTotal.value, 'day');
		break;
	case 4:
		emit('update', 'day', averageTotal.value, 'day');
		break;
	case 5:
		emit('update', 'day', workdayTotal.value, 'day');
		break;
	case 6:
		emit('update', 'day', 'L', 'day');
		break;
	case 7:
		if (checkboxList.value.length === 0) {
			checkboxList.value.push(checkCopy.value[0]);
		} else {
			checkCopy.value = checkboxList.value;
		}
		emit('update', 'day', checkboxString.value, 'day');
		break;
	}
}
</script>

<style lang="scss" scoped>
.el-input-number--small, .el-select, .el-select--small {
    margin: 0 0.2rem;
}
.el-select, .el-select--small {
    width: 18.8rem;
}
</style>